<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card class="box-card">
      <el-row :gutter="20">
        <el-col :span="7">
          <!-- 实现模糊查询  数据双向绑定查询参数-->
          <el-input
            placeholder="请输入内容"
            class="input-with-select"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userlist" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column prop="username" label="姓名"></el-table-column>
        <el-table-column prop="email" label="邮箱"></el-table-column>
        <el-table-column prop="mobile" label="电话"></el-table-column>
        <el-table-column prop="role_name" label="角色"></el-table-column>
        <el-table-column prop="msg_state" label="状态">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChange(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.id)"
            ></el-button>

            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="deletUserById(scope.row.id)"
            ></el-button>

            <!-- 分配角色按钮 -->
            <el-tooltip
              class="item"
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
             
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                 @click="setRole(scope.row)"

              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>

    <!-- 添加用户对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClose"
    >
      <!-- 内容主体 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser()">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户的对话框 -->
    <el-dialog
      title="修改用户信息"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClose"
    >
      <el-form
        :model="editForm"
        :rules="editFormRules"
        ref="editFormRef"
        label-width="70px"
      >
        <el-form-item label="用户" prop="username">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUser()">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色对话框 -->
    <el-dialog
      title="提示"
      :visible.sync="setRightDialogVisible"
      width="50%"
      @close ="setRightDialogClose"
    >
      <div>
        <p>当前用户：{{userInfo.username}}</p>
        <p>当前用户：{{userInfo.role_name}}</p>
        <p>
          分配新角色
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in roleslist"
              :key="item.id"
              :label="item.roleName"
              :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRightDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo"
          >确 定</el-button
        >
      </span>
    </el-dialog>
  </div>
</template>
<script>
export default {
  data() {
    //验证邮箱的正则表达式
    var checkEmail = (rule, value, cb) => {
      //验证邮箱正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        //合法邮箱
        return cb()
      }
      cb(new Error('请输入合法的邮箱'))
    }
    //验证手机的正则表达式
    var checkMobile = (rule, value, cb) => {
      //验证邮箱正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        //合法邮箱
        return cb()
      }
      cb(new Error('请输入合法的手机号'))
    }
    return {
      queryInfo: {
        //查询参数
        query: '',
        //当前页数
        pagenum: 1,

        //当前每页显示多少条
        pagesize: 2
      },
      userlist: [],
      total: 0,

      //控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      //控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      //分配角色对话框的显示与隐藏
      setRightDialogVisible: false,
      //添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      //添加表单的验证规则对象
      addFormRules: {
        username: [
          {
            required: true,
            message: '请输入用户名',
            trigger: 'blur'
          },
          {
            min: 3,
            max: 10,
            message: '用户名的长度在3-10个字符之间',
            trigger: 'blur'
          }
        ],
        password: [
          {
            required: true,
            message: '请输入密码',
            trigger: 'blur'
          },
          {
            min: 6,
            max: 15,
            message: '用户名的长度在6-15个字符之间',
            trigger: 'blur'
          }
        ],
        email: [
          {
            required: true,
            message: '请输入邮箱',
            trigger: 'blur'
          },
          {
            validator: checkEmail,
            trigger: 'blur'
          }
        ],
        mobile: [
          {
            required: true,
            message: '请输入手机号',
            trigger: 'blur'
          },
          {
            validator: checkMobile,
            trigger: 'blur'
          }
        ]
      },
      editForm: {
        username: '',
        email: '',
        mobile: ''
      },
      //添加表单的验证规则对象
      editFormRules: {
        username: [
          {
            required: true,
            message: '请输入用户名',
            trigger: 'blur'
          },
          {
            min: 3,
            max: 10,
            message: '用户名的长度在3-10个字符之间',
            trigger: 'blur'
          }
        ],
        email: [
          {
            required: true,
            message: '请输入邮箱',
            trigger: 'blur'
          },
          {
            validator: checkEmail,
            trigger: 'blur'
          }
        ],
        mobile: [
          {
            required: true,
            message: '请输入手机号',
            trigger: 'blur'
          },
          {
            validator: checkMobile,
            trigger: 'blur'
          }
        ]
      },

      userInfo:{
        username:'',
        role_name:''
      },
      roleslist:[],
      selectedRoleId:''
    }
  },
  //生命周期函数
  created() {
    this.getUserList()
  },

  //事件触发函数
  methods: {
    //异步
    async getUserList() {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      console.log(res)
      if (res.meta.status != 200) {
        return this.$message.error('获取用户列表失败')
      }
      this.userlist = res.data.users
      this.total = res.data.total
    },

    //监听pagessize 页数改变事件
    handleSizeChange(newSize) {
      // console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },

    //监听 页码值 改变的事件
    handleCurrentChange(newPage) {
      // console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    async userStateChange(userinfo) {
      // console.log(userinfo)
      //更新用户状态  发送请求
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (res.meta.status != 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功')
    },

    //监听对话框关闭触发事件
    addDialogClose() {
      //重置表单事件 先获取表单本身
      this.$refs.addFormRef.resetFields()
    },
    //添加用户
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        // console.log(valid) 预校验失败 valid 为flase
        if (!valid) {
          return
        }
        //添加新用户请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status != 201) {
          return this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功')

        //隐藏弹出框
        this.addDialogVisible = false

        //重新从后台获取数据
        this.getUserList()
      })
    },
    async showEditDialog(id) {
      // console.log(id)
      //动态拼接 id
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status != 200) {
        return this.$message.error('查询用户信息失败')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    editUser() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) {
          return
        }
        //发起修改用户信息的请求
        const { data: res } = await this.$http.put(
          'users/' + this.editForm.id,
          this.editForm
        )
        if (res.meta.status != 200) {
          this.$message.error('更新用户信息失败')
        }
        // 关闭对话框
        this.editDialogVisible = false
        //  重新请求数据
        this.getUserList()
        // 提示更新成功
        this.$message.success(res.meta.msg)
      })
    },
    //监听对话框关闭触发事件
    editDialogClose() {
      this.$refs.editFormRef.resetFields()
    },
    //删除当前用户数据
    async deletUserById(id) {
      //因为this.$confirm()方法返回的是Promise对象
      //所以可以用 async  await
      const comfirmResult = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => err)
      /**
       * 如果用户确认了删除 则返回字符串confirm
       * 如果用户取消了删除 则返回字符串cancel
       *
       */

      if (comfirmResult != 'confirm') {
        return this.$message.info('取消了删除')
      }

      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status != 200) {
        this.$message.err('删除用户失败')
      }

      this.$message.success('该用户删除成功')
      this.getUserList()
    },
    //分配角色事件  展示分配角对话框
    async setRole(userInfo){
      this.userInfo = userInfo
      //再展示对话框之前获取所有的角色列表
      const {data:res} = await this.$http.get('roles')

      if(res.meta.status!=200){
        return this.$message.err('分配角色失败')
      }
      this.roleslist = res.data

      this.setRightDialogVisible = true
    },
    async saveRoleInfo(){
      if(!this.selectedRoleId){
        return this.$message.err('请选择要分配的角色！')
      }
      console.log(this.userInfo.id)
      const{data:res} =   await this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.selectedRoleId})

      if(res.meta.status!=200){
        return this.$message.error('更新角色失败')
      }
      this.$message.success('更新角色成功')
      this.getUserList();
      this.setRightDialogVisible = false
    },
    //监听分配角色重置分配对话框
    setRightDialogClose(){
          this.selectedRoleId = ''
          this.userInfo={}
    }

  }
}
</script>
